Sensor unit



FIG. 1 is a top, left, front perspective view of a sensor unit embodying our new design;

FIG. 2 is a top, rear, left perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view of FIG. 3;

FIG. 5 is a right side elevational view of FIG. 3;

FIG. 6 is a rear elevational view of FIG. 3;

FIG. 7 is a top plan view of FIG. 3; and,

FIG. 8 is a bottom plan view of FIG. 3. 

We claim the ornamental design for a sensor unit, as shown and described. 